IOS parses XML and uses dictionaries and variable arrays to store data.

IOS parses XML and uses dictionaries and variable arrays to store data.

@ Interface withoutbookingview: uiviewcontroller <uitextfielddelegate, nsxmlparserdelegate,

Uitableviewdelegate, uitableviewdatasource> {

@ Private

// * ---------------- Select the time ------------------------*//

Uidatepicker * datepicker _;

//*----------------------------------------------*//

// * --------------- Create an array to store data and tableview to display the selected list ----------------*//

@ Public

// Array

// Campus

Nsarray * schooldistrictlist _;

// Classroom type

Nsmutablearray * classtypemutablearray _;

// Classroom

Nsmutablearray * lessonclassroommutablearray _;

// Save the array of classroom Arrays

Nsmutablearray * alltheclassroommutablearrar _;

// Array Used for display

Nsarray * classtypelist _;

Nsarray * lessonclassroomlist _;

// Store all data dictionaries in XML

Nsdictionary * alltheclassroomdictionary _;

// Times

Nsarray * lessonsectionlist _;

// Create a tableview

// Campus

Uitableview * schooldistricttableview _;

// Classroom type

Uitableview * classtypetableview _;

// Classroom

Uitableview * lessonclassroomtableview _;

// Times

Uitableview * lessonsectiontableview _;

//*---------------------------------------------------------------*//

// *********************************** Parse XML *** ***********************************

Nsdata * xmldata _;

Nsxmlparser * parserxml _;

Nsdata * datatoparse _;

Nsmutablearray * workingarray _;

Nsmutablestring * workingpropertystring _;

Nsarray * elementstoparse _;

Bool storingcharacterdata _;

// *********************************** Parse XML *** ***********************************

}

@ End

-(Void) viewdidload

{

[Super viewdidload];

// * = ========================================================== = *//

// Campus and festival

Schooldistrictlist _ = [[nsarray alloc] initwithobjects: @ "University City", @ "Longdong", @ "Dongfeng road", @ "Business School", nil];

Lessonsectionlist _ = [[nsarray alloc] initwithobjects: @ "1, 2", @ "3, 4", @ "5", @ "6, 7", @ "8, 9", @ "10, 11, 12 ", nil];

// The default value is section 1 and 2.

Lessonsectiontextfield _. Text = [lessonsectionlist _ objectatindex: 0];

// Initialize the classroom type, classroom, and Dictionary

Classtypemutablearray _ = [[nsmutablearray alloc] init];

Lessonclassroommutablearray _ = [[nsmutablearray alloc] init];

// * =================================================== ========================================================== ============= *//

// * ----------------------------------- Initialize tableview -------------------------------------*//

// Unify the size of tableview

Cgrect tableviewframe = cgrectmake (120,120,165,140 );

// Campus

Schooldistricttableview _ = [[uitableview alloc] initwithframe: tableviewframe style: uitableviewstylegrouped];

Schooldistricttableview _. Delegate = self;

Schooldistricttableview _. datasource = self;

// Times

Lessonsectiontableview _ = [[uitableview alloc] initwithframe: cgrectmake (150,220, lessonsectiontextfield _. Frame. Size. Width, 140) style: uitableviewstylegrouped];

Lessonsectiontableview _. Delegate = self;

Lessonsectiontableview _. datasource = self;

Tableviewframe. Origin. Y + = dudaotextfielddistance;

// Classroom type

Classtypetableview _ = [[uitableview alloc] initwithframe: tableviewframe style: uitableviewstylegrouped];

Classtypetableview _. Delegate = self;

Classtypetableview _. datasource = self;

Tableviewframe. Origin. Y + = dudaotextfielddistance;

// Classroom

Lessonclassroomtableview _ = [[uitableview alloc] initwithframe: tableviewframe style: uitableviewstylegrouped];

Lessonclassroomtableview _. Delegate = self;

Lessonclassroomtableview _. datasource = self;

// * Optional //*----------------------------------------------------------------------------------------*//

}

The following is only a method for parsing XML, and other functions are required to start the following method for parsing XML:

# Pragma mark ********************************* Parse XML ** ***********************************

// Traverse XML nodes

-(Void) parser :( nsxmlparser *) parser didstartelement :( nsstring *) elementname namespaceuri :( nsstring *) namespaceuri qualifiedname :( nsstring *) QNAME attributes :( nsdictionary *) attributedict

{

// Determine whether elementname and string-array are equal

If ([elementname isequaltostring: @ "string-array"])

{

[Classtypemutablearray _ addobject: [attributedict objectforkey: @ "name"];

}

// Query whether the specified object exists

Storingcharacterdata _ = [elementstoparse _ containsobject: elementname];

}

// Call this method if the node has a value

-(Void) parser :( nsxmlparser *) parser foundcharacters :( nsstring *) String

{

If (storingcharacterdata _)

{

[Workingpropertystring _ appendstring: String];

// Link a string to the end of another string

}

}

// Enter the end mark

-(Void) parser :( nsxmlparser *) parser didendelement :( nsstring *) elementname namespaceuri :( nsstring *) namespaceuri qualifiedname :( nsstring *) QNAME

{

If (storingcharacterdata _)

{

// Nsstring method, remove spaces before and after the string

Nsstring * trimmedstring = [workingpropertystring _ stringbytrimmingcharactersinset: [nscharacterset whitespaceandnewlinecharacterset];

// Empty the string

[Workingpropertystring _ setstring: @ ""];

If ([elementname isequaltostring: @ "item"])

{

[Lessonclassroommutablearray _ addobject: trimmedstring];

// Nslog (@ "% @", trimmedstring );

}

}

// When string-array is encountered

If ([elementname isequaltostring: @ "string-array"])

{

If ([lessonclassroommutablearray _ count])

{

[Alltheclassroommutablearrar _ addobject: [nsarray arraywithobject: lessonclassroommutablearray _];

// Release the memory first

[Lessonclassroommutablearray _ release];

Lessonclassroommutablearray _ = [[nsmutablearray alloc] init];

}

}

}

//************************************** ********************************//

Here, the corresponding XML file name is selected first, and then the method for parsing XML is called.

# Pragma mark-

# Pragma mark table delegate Methods

-(Void) tableview :( uitableview *) tableview didselectrowatindexpath :( nsindexpath *) indexpath;

{

[Tableview deselectrowatindexpath: indexpath animated: Yes];

Int ROW = [indexpath row];

If (tableview = schooldistricttableview _)

{

Nsstring * schooldistrictname = [schooldistrictlist _ objectatindex: Row];

[Schooldistricttableview _ removefromsuperview];

Schooldistricttextfield _. Text = schooldistrictname;

Schoolnumber _ = schooldistricttextfield _. text;

Schoolnumber _ = [self getdistrictnum];

// Nslog (@ "% @", schoolnumber _);

// *********************************** Parse XML *** ***********************************

// Try XML

// Initialization is used to temporarily store strings read from XML

Workingpropertystring _ = [nsmutablestring string];

// Initialization is used to store the parsed XML file

Workingarray _ = [nsmutablearray array];

// Obtain the XML file from the resource file

Nsstring * strpathxml = [[nsbundle mainbundle] pathforresource: schooldistrictname oftype: @ "XML"];

// Convert an XML file to the Data Type

Xmldata _ = [[nsdata alloc] initwithcontentsoffile: strpathxml];

// Initialize the XML to be parsed

Parserxml _ = [[nsxmlparser alloc] initwithdata: xmldata _];

// Initialize the elements to be parsed from XML

Elementstoparse _ = [nsarray arraywithobjects: @ "string-array", @ "item", nil];

// Set the XML parsing proxy to self

[Parserxml _ setdelegate: Self];

// Clear the array before parsing

[Classtypemutablearray _ removeallobjects];

// Initialize and store two-dimensional arrays of all classrooms

Alltheclassroommutablearrar _ = [[nsmutablearray alloc] init];

// Start Parsing

// Jump to the three methods used to parse XML

[Parserxml _ parse]; // call the parsed proxy method

// Store all corresponding classrooms in dictionary form

Alltheclassroomdictionary _ = [[nsdictionary alloc] initwithobjects: alltheclassroommutablearrar _ forkeys: classtypemutablearray _];

// Update tableview

[Classtypetableview _ reloaddata];

// Nslog (@ "% @", alltheclassroomdictionary _);

}

Else if (tableview = classtypetableview _)

{

Nsstring * classtypename = [classtypemutablearray _ objectatindex: Row];

[Classtypetableview _ removefromsuperview];

Classtypetextfield _. Text = classtypename;

// Nslog (@ "% @", [alltheclassroomdictionary _ objectforkey: classtypename]);

[Lessonclassroommutablearray _ removeallobjects];

[Lessonclassroommutablearray _ addobject: [alltheclassroomdictionary _ objectforkey: classtypename]; // obtain the corresponding array from the dictionary

// Nslog (@ "% @", lessonclassroommutablearray _);

// Nslog (@ "% @", [[lessonclassroommutablearray _ objectatindex: 0] objectatindex: 0]);

[Lessonclassroomtableview _ reloaddata];

}

Else if (tableview = lessonclassroomtableview _)

{

Nsstring * lessonclassroomname = [[[lessonclassroommutablearray _ objectatindex: 0] objectatindex: 0] objectatindex: Row];

[Lessonclassroomtableview _ removefromsuperview];

Lessonclassroomtextfield _. Text = lessonclassroomname;

}

Else

{

Nsstring * lessonsectionlist = [lessonsectionlist _ objectatindex: Row];

[Lessonsectiontableview _ removefromsuperview];

Lessonsectiontextfield _. Text = lessonsectionlist;

}

}